6885136277 has 2 divisors, whose sum is σ = 6885136278. Its totient is φ = 6885136276.

The previous prime is 6885136211. The next prime is 6885136309. The reversal of 6885136277 is 7726315886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6860146276 + 24990001 = 82826^2 + 4999^2 .

It is a cyclic number.

It is not a de Polignac number, because 6885136277 - 2⁸ = 6885136021 is a prime.

It is a super-2 number, since 2×6885136277² = 94810203105722841458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6885136777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3442568138 + 3442568139.

It is an arithmetic number, because the mean of its divisors is an integer number (3442568139).

Almost surely, 2^6885136277 is an apocalyptic number.

It is an amenable number.

6885136277 is a deficient number, since it is larger than the sum of its proper divisors (1).

6885136277 is an equidigital number, since it uses as much as digits as its factorization.

6885136277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 53.

The square root of 6885136277 is about 82976.7212957948. The cubic root of 6885136277 is about 1902.4102631208.

The spelling of 6885136277 in words is "six billion, eight hundred eighty-five million, one hundred thirty-six thousand, two hundred seventy-seven".